From On Bullshit, by Harry Frankfurt, Princeton University Press, 2005:

One of the most salient features of our culture is that there is so much bullshit. Everyone knows this. Each of us contributes his share. But we tend to take the situation for granted. Most people are rather confident of their ability to recognize bullshit and to avoid being taken in by it. So the phenomenon has not aroused much deliberate concern, or attracted much sustained inquiry. In consequence, we have no clear understanding of what bullshit is, why there is so much of it, or what functions it serves. And we lack a conscientiously developed appreciation of what it means to us. In other words, we have no theory. I propose to begin the development of a theoretical understanding of bullshit, mainly by providing some tentative and exploratory philosophical analysis...
Quoted here in honor of Prof. Frankfurt's being a bit full of shit himself.

Update: Looks like this may be a misunderstanding. Good news for many reasons, not least that the book itselfs looks interesting and I’d like to buy it with a clear conscience.</strong>